Myofilaments were found in cytoplasm, and between cells there were cell junctions.
胞浆内可见肌丝样结构，细胞间存在细胞连接。
2
Transmission electron microscopy showed that the induced cells had myofilaments, Z line-like substances.
透射电镜可见平行排列的肌丝、Z线样物质。
3
Allopurinol can enhance cardiac function by improving unbalanced distribution of calcium, increase the sensitivity of myofilaments to calcium and improving abnormal excitation contraction coupling.